In geometry, a translation is the shifting of a figure from one place to another without rotating, reflecting or changing its size. This is done by moving the vertices of the figure the prescribed number of spaces on a coordinate plane and then drawing the new figure.
These PFDs are designed to keep the wearer in a vertical position, but it is the wearersâ responsibility to maneuver themselves into a face-up position. Type III PFDs will keep unconscious wearers face-up just as well as a Type II vest.
The facekini has been popular attire on beaches in eastern China for several years, especially in the city of Qingdao, a seaside city of 9 million. The skin-tight elasticated fabric masks cover a swimmer's entire head and neck. Holes are cut for eyes, nostrils, mouth and, in some cases, pony tails.